The story
From Scots, perhaps a rebracketing of to then eyne (“to the eyes”) or to thyn eyne (“(up) to your eyes”).
Etymology from Wiktionary, CC BY-SA 4.0.
to the nines
Today it means: To perfection; fully, wholly. Full definition →
Today it means: To perfection; fully, wholly. Full definition →
From Scots, perhaps a rebracketing of to then eyne (“to the eyes”) or to thyn eyne (“(up) to your eyes”).
Etymology from Wiktionary, CC BY-SA 4.0.